package system

import (
  "errors"
  "gorm.io/gorm"
  "livefind/global"
  "livefind/model/system"
  "livefind/model/system/request"
)

//@author: [piexlmax](https://github.com/piexlmax)
//@function: DeleteSysDictionary
//@description: 创建字典数据
//@param: sysDictionary model.SysDictionary
//@return: err error

type DictionaryService struct {
}

func (dictionaryService *DictionaryService) CreateSysDictionary(sysDictionary system.SysDictionary) (err error) {
  if (!errors.Is(global.GVA_DB.First(&system.SysDictionary{}, "type = ?", sysDictionary.Type).Error, gorm.ErrRecordNotFound)) {
    return errors.New("存在相同的type，不允许创建")
  }
  err = global.GVA_DB.Create(&sysDictionary).Error
  return err
}

//@author: [piexlmax](https://github.com/piexlmax)
//@function: DeleteSysDictionary
//@description: 删除字典数据
//@param: sysDictionary model.SysDictionary
//@return: err error

func (dictionaryService *DictionaryService) DeleteSysDictionary(sysDictionary system.SysDictionary) (err error) {
  err = global.GVA_DB.Delete(&sysDictionary).Delete(&sysDictionary.SysDictionaryDetails).Error
  return err
}

//@author: [piexlmax](https://github.com/piexlmax)
//@function: UpdateSysDictionary
//@description: 更新字典数据
//@param: sysDictionary *model.SysDictionary
//@return: err error

func (dictionaryService *DictionaryService) UpdateSysDictionary(sysDictionary *system.SysDictionary) (err error) {
  var dict system.SysDictionary
  sysDictionaryMap := map[string]interface{}{
    "Name":   sysDictionary.Name,
    "Type":   sysDictionary.Type,
    "Status": sysDictionary.Status,
    "Desc":   sysDictionary.Desc,
  }
  db := global.GVA_DB.Where("id = ?", sysDictionary.ID).First(&dict)
  if dict.Type == sysDictionary.Type {
    err = db.Updates(sysDictionaryMap).Error
  } else {
    if (!errors.Is(global.GVA_DB.First(&system.SysDictionary{}, "type = ?", sysDictionary.Type).Error, gorm.ErrRecordNotFound)) {
      return errors.New("存在相同的type，不允许创建")
    }
    err = db.Updates(sysDictionaryMap).Error

  }
  return err
}

//@author: [piexlmax](https://github.com/piexlmax)
//@function: GetSysDictionary
//@description: 根据id或者type获取字典单条数据
//@param: Type string, Id uint
//@return: err error, sysDictionary model.SysDictionary

func (dictionaryService *DictionaryService) GetSysDictionary(Type string, Id uint) (err error, sysDictionary system.SysDictionary) {
  err = global.GVA_DB.Where("type = ? OR id = ?", Type, Id).Preload("SysDictionaryDetails").First(&sysDictionary).Error
  return
}

//@author: [piexlmax](https://github.com/piexlmax)
//@author: [SliverHorn](https://github.com/SliverHorn)
//@function: GetSysDictionaryInfoList
//@description: 分页获取字典列表
//@param: info request.SysDictionarySearch
//@return: err error, list interface{}, total int64

func (dictionaryService *DictionaryService) GetSysDictionaryInfoList(info request.SysDictionarySearch) (err error, list interface{}, total int64) {
  limit := info.PageSize
  offset := info.PageSize * (info.Page - 1)
  // 创建db
  db := global.GVA_DB.Model(&system.SysDictionary{})
  var sysDictionarys []system.SysDictionary
  // 如果有条件搜索 下方会自动创建搜索语句
  if info.Name != "" {
    db = db.Where("`name` LIKE ?", "%"+info.Name+"%")
  }
  if info.Type != "" {
    db = db.Where("`type` LIKE ?", "%"+info.Type+"%")
  }
  if info.Status != nil {
    db = db.Where("`status` = ?", info.Status)
  }
  if info.Desc != "" {
    db = db.Where("`desc` LIKE ?", "%"+info.Desc+"%")
  }
  err = db.Count(&total).Error
  err = db.Limit(limit).Offset(offset).Find(&sysDictionarys).Error
  return err, sysDictionarys, total
}
